git.slaskete.net - einar-bin/blob - macvendor.sh

   1 #!/usr/bin/env bash
   2
   3 prefixesfile=/home/einar/ownCloud/Datadumper/master_oui.txt
   4
   5 if [[ ! -f $prefixesfile ]]; then
   6   echo "Could not find MAC prefixes file $prefixesfile, please download from https://raw.githubusercontent.com/Ringmast4r/OUI-Master-Database/main/LISTS/master_oui.txt and save to some suitable "
   7   exit 1
   8 fi
   9
  10 hexregex="^[[:xdigit:]]{6,12}$"
  11
  12 prefix=${1//:/}      # strip :
  13 prefix=${prefix//-/} # strip -
  14 prefix=${prefix//./} # strip .
  15 prefix=${prefix^^}   # uppercase
  16
  17 if [[ $prefix =~ $hexregex ]]; then
  18   prefix=${prefix:0:6} # we only need first 6 chars
  19   grep "$prefix" "$prefixesfile"
  20 else
  21   echo "Input parameter does not resemble a MAC address"
  22   exit 1
  23 fi